Display Panel Sealant Structure for Static Electricity Protection
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Solution Overview
Problem
As display devices become narrower and slimmer, the non-display area of the display panel is reduced, exposing signal lines to external static electricity, which can damage the lines and affect image display.
Innovation Solution
A display panel design with a first signal line portion and a second signal line portion, where the second signal line portion is spaced from the first and coated with a sealant, and configured as a bulk electrode or mesh pattern, allowing for easy discharge of static electricity, preventing external static from reaching the first signal lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the non-display area is reduced to make the display device narrower and slimmer, then the device dimensions are improved, but the signal lines become exposed to external static electricity
Solution Approach 1:
A sealant is introduced as an intermediary material between the signal lines and the external environment. The sealant fills the non-display area and covers the signal lines, creating a protective barrier that blocks static electricity while allowing the device to maintain a narrow profile.
Solution Approach 2:
The protection approach transitions from a planar 2D layout to a 3D structure by having the sealant rise above the signal lines. The sealant is disposed on both the upper surface and side surfaces of the signal lines, creating a three-dimensional protective enclosure that blocks static electricity from all directions.
2Area of stationary object
If the non-display area is reduced, then the device becomes more compact, but the signal lines become vulnerable to external static electricity
Solution Approach 1:
The sealant functions as a protective shell or film that envelops the signal lines. This flexible protective layer conforms to the signal line geometry and provides comprehensive coverage, protecting the lines from static electricity while maintaining device compactness.
Solution Approach 2:
The sealant is applied in advance to cover and protect the signal lines before the device is subjected to static electricity. This pre-protective measure ensures that when static electricity is encountered, the signal lines are already shielded by the sealant barrier.
3Ease of manufacture
If signal lines are exposed in the non-display area, then device manufacturing is simplified, but static electricity can damage the lines
Solution Approach 1:
The sealant serves multiple functions simultaneously: it acts as an adhesive to bond components, provides electrical insulation to prevent static electricity damage, and creates a physical barrier for protection. This multi-functionality maintains manufacturing simplicity while adding comprehensive protection.
Data Source
AI summary
Disclosed is a display panel with a robust structure to external static electricity. A sealant is disposed on a side surface and an upper surface of a signal line portion disposed on the outermost circumferential portion of the display panel to increase the distance between the signal line and the outside, and blocks external static elasticity. The signal line portion on the outermost circumferential portion of the display panel is in the form of a bulk electrode or in a mesh pattern comprised of horizontal lines and vertical lines having different structures. Externally introduced static elasticity is easily discharged, and signal lines are prevented from being damaged.